Barrett M82A1

About the Barrett M82A1

The Barrett M82A1, also known as the 'Light Fifty', is a recoil-operated, semi-automatic anti-materiel rifle developed by Barrett Firearms Manufacturing. Designed by Ronnie Barrett in 1982, it was engineered as the first shoulder-fired semi-automatic .50 BMG rifle. The M82A1 fires the powerful 12.7x99mm NATO (.50 BMG) cartridge and features a distinctive recoil management system with a large muzzle brake to mitigate the massive recoil forces. Adopted by the U.S. military in 1990 during Operation Desert Shield/Desert Storm as the Special Applications Scoped Rifle (SASR), it was later standardized by the U.S. Army in 2002 as the M107. The weapon is primarily used for engaging material targets at extreme distances, including light armored vehicles, radar installations, communications equipment, parked aircraft, and explosive ordnance disposal. With an effective range of 1,800 meters and a maximum range of 4,000 meters, the M82A1 has been adopted by military and law enforcement forces in over 50 countries worldwide.

Ronnie Barrett designed the M82 in his garage with no formal engineering training, creating the world's first shoulder-fired semi-automatic .50 BMG rifle. The US military initially showed no interest until Sweden became the first military customer in 1989, after which the USMC rushed to adopt it for Operation Desert Shield.

Barrett M82A1 specifications

The M82A1 features a 29-inch fluted barrel with 8 grooves and a 1:15 inch right-hand twist. It includes a lightweight quick-detach bipod, flip-up iron sights, and a 23-inch Picatinny rail with 27 MOA cant and carrying handle. The rifle is available in multiple finishes including manganese phosphate, tungsten grey Cerakote, and flat dark earth Cerakote. The standard M82A1 weighs 32.7 pounds (14.8 kg) with the 29-inch barrel, while a 20-inch barrel variant weighs 31.4 pounds (14.3 kg). The M107A1 variant incorporates lightweight aluminum and titanium components, reducing weight to approximately 27.4 pounds (12.4 kg). Accuracy is typically within 3 MOA and can achieve sub-1 MOA with match ammunition. The M82A2 bullpup variant was discontinued, though the XM500 serves as its spiritual successor.